Oakland A's outfielder Nick Swisher strained his left hamstring while running the bases in the first inning of a game against the Baltimore Orioles.
The former Parkersburg Big Red star was rounding third on a single by Eric Chavez when he stopped to check the location of the ball. His left leg buckled, and he had to crawl back to third base.
Swisher, who had reached on a single, was removed from the game and replaced by pinch runner Marco Scutaro.
Monday night, Swisher hit two home runs and drove in three runs. It was his seventh career two-homer game, and the third time he homered from both sides of the plate. The two home runs doubled his season total.